CVE-2026-48856
HIGHCVSS v4.0: 7.1
出典データ取得時点:
概要
- 深刻度
- HIGH
- CVSS
- 7.1 v4.0 · NVD
- EPSS
- このCVEはFIRST.orgからEPSSが提供されていません
- CISA KEV
- 非該当
- 攻撃条件（CVSSベクター）
- ネットワーク権限不要 · 出典: NVD ベクター
- 公開日
- 2026-06-10 · 更新日: 2026-06-10
- 参照情報
- 参照情報へ移動 (5)
CVSS / EPSS / KEV
出典 — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. データと出典
説明
Sensitive Data Exposure vulnerability in Erlang OTP inets (httpc_response module) allows Retrieve Embedded Sensitive Data. The httpc client forwards the Authorization and Proxy-Authorization request headers to redirect targets without checking whether the redirect crosses an origin boundary. httpc_response:redirect/2 constructs the redirected request by updating only the host field of the header record; all other fields (including authorization and proxy_authorization) are copied verbatim. The redirect target host is never compared against the original host. autoredirect defaults to true, so this affects all httpc callers that do not explicitly disable automatic redirects. An attacker who controls a server that the victim contacts via httpc can issue a cross-origin 3xx redirect to a server they also control. The Authorization header (including Basic credentials derived from URL userinfo via httpc_request:handle_user_info/2) is forwarded to the redirect target, allowing credential theft. The same applies to the Proxy-Authorization header. This vulnerability is associated with program files lib/inets/src/http_client/httpc_response.erl. This issue affects OTP from 17.0 before 29.0.2, 28.5.0.2 and 27.3.4.13 corresponding to inets from 5.10 before 9.7.1, 9.6.2.2 and 9.3.2.6.
参照情報
NVDが列挙した参照URLを、リンクのホスト・パターンに対する機械的な一致でグループ化したもの。ラベルはリンクの種別のみを示します。
- 参照 https://cna.erlef.org/cves/CVE-2026-48856.html
- パッチ https://github.com/erlang/otp/commit/688d748d6f7a6a06b13b662a1d3de8af97079612
- ベンダー勧告 https://github.com/erlang/otp/security/advisories/GHSA-m75x-4vwg-ggjh
- 参照 https://osv.dev/vulnerability/EEF-CVE-2026-48856
- 参照 https://www.erlang.org/doc/system/versions.html#order-of-versions